<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>

  <body>
    <div id="app"></div>
    <!-- 1.引入依赖 -->
    <script src="../../react/react.development.js"></script>
    <script src="../../react/react-dom.development.js"></script>
    <script src="../../react/babel.min.js"></script>
    <!-- 2.开始开发 -->
    <script type="text/babel">
      //  用React显示HelloReact
      // ReactDOM.render(需要展示要渲染的元素,将渲染的元素挂载)
      
      ReactDOM.render(<h2>Hello React</h2>,document.getElementById('app'))
    </script>
  </body>
</html>
